BOLKER, J.A.; University of New Hampshire: Evolving modularity: evolutionary origins and consequences of modular developmental resources Evolution of both phenotypes and genotypes occurs through changes in the form and interrelationships of biological modules. Developmental modules have themselves evolved, and continue to do so. Modular developmental resources (Gass and Bolker, 2002) can incorporate both genetic and […]

AMUNDSON, R; Univ. of Hawaii at Hilo: Changing the Spin: An Evo Devo Retelling of the Birth of Evolutionary Biology Histories of science are often written by scientists (and colleagues) for the purpose of providing a historical perspective to contemporary debates. Much of the content of today�s histories of evolutionary biology was first composed in […]

DWORKIN, Ian M.; University of Toronto: Simplifying Waddington’s Legacy: Variation, Canalization and Asymmetry Recent interest in how developmental mechanisms can influence the rate and direction of evolution has lead to new theory pertaining to canalization (developmental buffering). Several models have been explored which examine under what conditions canalization might evolve, and how canalizing mechanisms for […]

ZELDITCH, M.L.; LUNDRIGAN, B.L.; University of Michigan, Ann Arbor; Michigan State University, East Lansing: Ontogenetic dynamics of developmental regulation of skull shape The developmental processes generating and regulating morphological variation are of fundamental importance to evolution. We might expect variance to diminish during development due to intrinsic regulatory mechanisms, a hypothesis supported in the few […]

JEFFERY, J.E.; BININDA-EMONDS, O.R.P.; COATES, M.I.; RICHARDSON, M.K.; Institute of Evolutionary and Ecological Sciences, University of Leiden, NL; Technical University of Munich, Freising-Weihenstephan, Germany; Department of Organismal Biology & Anatomy, University of Chicago, USA: New methods for determining heterochronic change Developmental sequence (�event�) heterochrony is a widespread evolutionary phenomenon, although it has always proved difficult […]

OLSON, Wendy M; HALL, Brian K; Dalhousie University, Halifax NS; Dalhousie University, Halifax NS: Evolutionary Developmental Mechanisms:Space, Time and Morphology Embryonic development has long been recognized as the vehicle for evolutionary change. However, we are only beginning to understand the evolutionary and developmental processes that constitute evolutionary developmental mechanisms, which include processes of development that […]

ARENDT, Jeff; University of California, Riverside: A Preliminary Framework for Integrating Evolutionary Ecology and Development In order to link development with adaptive evolution we need to ask three questions: 1)What is the developmental basis of a given phenotypic trait? 2)How does variation in this trait depend upon the underlying developmental mechanism? and 3)What are the […]

TAKAHASHI, K. ; CHIU, C.-h.; AMEMIYA, C. ; RUDDLE, F.; LARSSON, H. ; WAGNER, G. P. ; Yale University, CT; Rutgers University, NJ; V. Mason Research Institute, WA; Yale University, CT; Yale University, CT; Yale University, CT: Sequence evolution of Hoxa-11 and Hoxa-13 suggests an early origin of the autopodial fieldearly origin of the autopodial […]

ELINSON, R.P.*; NINOMIYA, H.; Duquesne University, Pittsburgh, PA: Parallel microtubules and other conserved elements of dorsal axial specification in the Puerto Rican tree frog, Eleutherodactylus coqui In the frogs Xenopus laevis and Rana pipiens, a transient array of parallel microtubules in the vegetal cortex of the egg moves a dorsal determinant asymmetrically. This movement is […]

TANAKA, K.*; TRUMAN, J.W.; University of Washington, Seattle: Molecular patterning of the larval and the adult legs in the tobacco hornworm Manduca sexta Insect leg development can be classified into three major types. The first type is found in direct developing insects where a leg of the adult form is made during embryogenesis. Insects with […]